Towel bar



FIG. 1 is a perspective view of a towel bar showing my new design;

FIG. 2 is a reduced first end view thereof, the opposite end being a mirror image of the end shown;

FIG. 3 is a rear view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front elevational view thereof; and,

FIG. 6 is a bottom view thereof.

The broken lines shown in FIG. 3 are included for the purpose of illustrating portions of the towel bar and form no part of the claimed design. 

CLAIM The ornamental design for a towel bar, as shown and described. 